compositions



I06. COMPOSITIONS,

COATING OR PLASTIC.

and i'nsuificient hardness, and then, too, great attention mustbe given in working the ordinary form of mortar to the state of the sur- 7 tant factors in the successful manipulation of UNITED STATES m'vtl g wgi t CARP} STRAUB, OF' SYRACUSE, NEW YORK.

PATENT FFICE.

WALL-COVERING COM POSITION.

SPECIFICATION forming part of Letters Patent No. 382.740, dated May 15, 1888.

Application filed February 8. IP87.

To all whom it may concern.-

Serial No. 226,945. No specimens.)

port-ion of acid would be increased and vice Beitknown that 1, CARL STRAUB, of Syra- Trsa. A'fterflie i egetable fiber has been tions, among which are the following: Lack of cohesion, to overcome which hairis mixed into I the mortar; lack of adhesion to the walls to be covered by the mortar, inequality of density rounding atmosphere, the temperature and the humidity of such atmosphere forming impon the mortar. To avoid all these difilculties and at the same time to materially cheapen the covering substance, I have devised the compo sition forming the subject matter of this application, theingredients of my composition being of such a character that the composition itself is only about half as heavy as mortar; but itis moreelastic,and isofauniform density or hardness. v

In compounding myz composition I take vegetable 'fib r, referabl sawdust, which ma be colored or u ccl'oredand mix this fiber iii 3 a proper recep ac c w th uriatic acid and water the acid and water being COlllBlllEd in 2 the proportions of one part of acid to from I thirty to sixty parts of water; or, instead of miifiatic acid, I could use sul huric acid, or I the'two acids might be commead of the acid; silica of otash or nat-ronconld beI used, the pmve stated, if with water. 'If acid is nsed a nd it desired to have the material hard''r'i"quickl'yfthe py- I treated as described it is dried and after beproper form of mineral cemen eing applicable for use in this connect-ion; but in practice I would prefer to use the material described in Letters Patent No. 353,896, granted to me on the 7th day of December, 1886; but ortland cement, water-lime, or, as before state any pr cmd be used. In combining the dry vegetable fiber with the cement care must be taken to thoroughly mix the two ingredients, after which the mixed ingredients may be packed for transportation and are 1n condition for immediate use, the material being applied by mixing it wit-h water until a thick paste is obtained, which should be thoroughly stirred, and which may be applied upon the backing of stone, brick,wood, or any other proper backing in the same way as common plaster or mortar is applied, a good finish and surface being obtained without much difficulty or work.

When the background to which the composition is applied is made of brick, stone, or lath, it would not be necessarv to im re nate the ve etable fi'fir with acids.

Having thus iuIIy described my invention, I claim as new and desire to secure by Letters Patent- 1. The covering composition consisting of wood fiber, cement, and a hardening-acid, substantially as set forth.

2. The covering composition consisting of wood fiber, sawdust, mineral cement, and murlatic and sulphuric acid, substantially as described. 1

CARL sralinn.

Witnesses:

SAMUEL S. Rus'ron, T. S. TRUAIR. 

